John s



(No Model.)

J. S. EDGOOMB.

' COTTON GIN.

No. 429,119. Patented June 3,1890.

mlulliilllnmu q lhtmaoaao ammwwoz UNITED STATES PATENT OFFICE.

JOHN S. EDGCOMB, OF MYSTIC RIVER, CONNECTICUT, ASSIGNOR TO THE STANDARD MACHINERY COMPANY, OF SAME PLACE.

COTTON cm.

SPECIFICATION forming part of Letters Patent N 0. 429,119, dated June 3, 1890.

Application filed February 17,1890. Serial No.'34=0,'749. (No model.)

To all whom it may concern.-

Be it. known that I, JOHN S. EDGGOMB, a citizen of the United States, residing at Mystic River, in the county of New London and State of Connecticut, have made a certain new and useful Improvement in Cotton-Gins, which improvement is fully set forth and described in the following specification, reference being had to the accompanying sheet of drawings.

This invention has particular relation to that class of cotton gins in which a swiftlyrevolving brush is combined with the saws, the office of said brush being to strip the cotton from the saws, comb out and lay the fiber into a bat, and also serve as a fan-blower to force the said bat out of the gin. A familiar type of such gins is seen in Patent No. 266,376,issued October24, 1882, to F. H. Lummus. So far as I am familiar with such gins the revolvin gbrush has failed to move steadily and has been more or less governed by the quantity of cotton operated on by the saws. In other words, when the gin is crowded to its utmost capacity the saws, being driven positively, run strongly; but the brush, being of comparatively light weight, is checked or retarded by the excess of work put upon it, and in consequence goes wit-h a jerky or spasmodic movement. As a result, the cotton is not so perfectly stripped from the saws. Neither is the hat of ginned cotton delivered in as good condition as it would be if the said brush were caused to rotate with a steady unwavering motion, and the object of my present invention is to remedy the described defect.

To more clearly explain my invention I have annexed hereto a sheet of drawings, in which- Figure 1 is an end elevation of a cotton-gin having my improvement attached thereto,

and Fig. 2 is a vertical cross-section of a similar gin. Fig. 3 shows the brush-shaft removed from the machine, having attached thereto the brush-frame and portions of the brush.

In the drawings, a denotes the gin as a whole; b, the saw-shaft, and c the brush-shaft. The general arrangement of said saw and brush shafts is the same as in the Lummus Patent No. 266,376, above referred to, to which reference is made for a more. complete description of details.

The brush-frameis built up in various ways by different manufacturers of gins, but in general consists of a light frame-work of oylindrical shape, whose circumference is filled with radially-projecting bristles. The framework here illustrated consists of disks (1, se cured to the brush-shaft and connected by a series of strips or bars 6, extending parallel with said brush-shaft, thus forming a skeleton cylinder, in which the bristles f are secured.

On one end of shaft 0, I have secured a heavy balance-wheel h, which forms the principal feature of my invention. IVith the aid of said balance-wheel the light cylindrical brush-frame, already described, is caused to rotate with a steady even motion that effectually and cheaply overcomes the defects above referred to.

I-Iavin g thus described my invention,I claim as new and wish to secure by Letters Patent- In combination with a shaft bearing a series of gin-saws, an adjacent shaft bearing a cylindrical brush, as set forth, the described brush-shaft having a balance-wheel secured to one end thereof, substantially as and for the purpose specified.

JOHN S. EDGCOMB. Witnesses:

W. O. EDGEOOMB,

P. RANDALL. 

